CN109999629A - Multistage dense phase semi-dry desulphurization reactor - Google Patents
Multistage dense phase semi-dry desulphurization reactor Download PDFInfo
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- CN109999629A CN109999629A CN201910309911.5A CN201910309911A CN109999629A CN 109999629 A CN109999629 A CN 109999629A CN 201910309911 A CN201910309911 A CN 201910309911A CN 109999629 A CN109999629 A CN 109999629A
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- gases passes
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- 239000007789 gas Substances 0.000 claims abstract description 93
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims description 38
- 239000003546 flue gas Substances 0.000 claims description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 abstract description 24
- 230000023556 desulfurization Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 13
- 238000003723 Smelting Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 229910052725 zinc Inorganic materials 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000011133 lead Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a kind of multistage dense phase semi-dry desulphurization reactors, component and multiple unloading valves is added including inlet flue duct, exhaust pass, multiple U-shaped reactors, multiple desulfurizing agents, multiple U-shaped reactors are equipped with U-shaped exhaust gases passes, each U-shaped exhaust gases passes are equipped with air inlet and air outlet, multiple U-shaped reactors are successively closely disposed adjacently between inlet flue duct and exhaust pass, so that multiple U-shaped exhaust gases passes are sequentially connected in series between inlet flue duct and exhaust pass；Multiple desulfurizing agents are added component and respectively correspond at the air inlet for being arranged on multiple U-shaped reactors and being accordingly close in multiple U-shaped exhaust gases passes so that desulfurizing agent is added into each U-shaped exhaust gases passes；Multiple unloading valves are respectively corresponded to be arranged on multiple U-shaped reactors and respectively correspond and be set positioned at the bottom lowermost position of multiple U-shaped reactors.The present invention is realized carries out Multistage desulfuration reaction in same reactor, and topology layout is compact, occupied area is small.
Description
Technical field
The present invention relates to dense flow absorber flue gas desulfurization technique technical field more particularly to a kind of multistage dense phase semi-dry desulphurization are anti-
Answer device.
Background technique
Close phase semi-dry desulphurization technology is a kind of semi-dry method flue gas desulfurization technique of maturation, and desulfurizer is generally located on smelting
Golden furnace or boiler smoke dust-precipitator rear end, for removing the SO in flue gas2, the pollutants such as HCl and HF, be now widely used for steel
The metallurgical gas such as factory, power plant, which are administered and enter coloured smoke, administers field.The technique belongs to semi-dry desulfurizing process, mainly by taking off
Reaction of Salmon-Saxl device, deduster, air-introduced machine, Desulphurization circulation and storage, desulfurizing agent humidification, electrical and automation control, medium are (empty
Gas and water) conveying etc. equipment composition.Desulfurization reactor is the core equipment of entire technique, generally cylindrical body or cuboid box
3~5 groups of flue gas agitating devices, the stand-by equipments such as the defeated ash of reactor connection, humidification are arranged in structure, tower body top.The technique single-stage
Desulfuration efficiency can achieve 80~90%.
But the Flue Gas of Nonferrous Smelting such as copper, lead, zinc SO2Initial concentration is higher, reaches 6000mg/Nm3More than, exhaust gas volumn and
Temperature fluctuation is violent, and desulfuration efficiency require stably reach 95% or more, cause the close phase semidry process of single-stage be not able to satisfy copper,
The requirement of the special emission limit of the Flue Gas of Nonferrous Smelting such as lead, zinc.For Flue Gas of Nonferrous Smelting such as the copper, lead, zinc that meet high-sulfur feature
The requirement of special emission limit, mostly uses multistage semidry method Combined Treatment.General approach is using 2~3 sets of single-stage desulphurization reactions
The stand-by equipments series operation such as device and defeated ash independent, stirring.It is this to cause the simply concatenated mode of desulfurization reactor
A series of problems, such as ancillary equipments such as defeated ash, stirring are multiplied, and occupied area increases and investment increases.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of multistage dense phase semi-dry desulphurization reactor, realizes and carry out Multistage desulfuration reaction in same reactor, it can
To meet SO2 >=6000mg/m3The special emission limit of the Flue Gas of Nonferrous Smelting such as copper, lead, the zinc of high-sulfur feature (≤100mg/m3)
It is required that and topology layout is compact, occupied area is small, equipment investment cost is low.
Multistage dense phase semi-dry desulphurization reactor according to an embodiment of the present invention, comprising:
Inlet flue duct and exhaust pass；
Multiple U-shaped reactors, multiple U-shaped reactors are equipped with U-shaped exhaust gases passes, each U-shaped exhaust gases passes
It is equipped with air inlet and air outlet, multiple U-shaped reactors are successively closely disposed adjacently in the inlet flue duct and described
Between exhaust pass, so that multiple U-shaped exhaust gases passes are sequentially connected in series between the inlet flue duct and the exhaust pass,
Wherein, the gas outlet of the previous U-shaped exhaust gases passes and the air inlet of U-shaped exhaust gases passes described in the latter connect
Logical, the air inlet of first U-shaped exhaust gases passes is connected to the inlet flue duct, the last one described U-shaped flue gas is logical
The gas outlet in road is connected to the exhaust pass；
Component is added in multiple desulfurizing agents, and multiple desulfurizing agents are added component and are arranged in a one-to-one correspondence respectively in multiple U
It is close at the air inlet of multiple U-shaped exhaust gases passes on type reactor and correspondingly with to each U
Desulfurizing agent is added in type exhaust gases passes；
Multiple unloading valves, multiple unloading valves are arranged in a one-to-one correspondence on multiple U-shaped reactors respectively and difference
It corresponds and is set positioned at the bottom lowermost position of multiple U-shaped reactors.
Multistage dense phase semi-dry desulphurization reactor according to an embodiment of the present invention realizes and reacts Multistage desulfuration same
It is carried out in reactor, guarantees that the flue gas of desulfurization meets related request, can satisfy SO2 >=6000mg/m3The copper of high-sulfur feature,
The special emission limit of the Flue Gas of Nonferrous Smelting such as lead, zinc (≤100mg/m3) requirement.Meanwhile topology layout is compact, effectively reduces
System footprint area reduces the quantity that the stand-by equipments such as component and unloading valve are added in desulfurizing agent, reduces equipment investment cost.
According to one embodiment of present invention, multiple U-shaped reactors are in line or L-type is arranged.
According to one embodiment of present invention, each U-shaped reactor includes cabinet and partition, and the cabinet includes side
Wall, roof and bottom wall, the side wall, roof and bottom wall have been collectively formed chamber, the upper end of the side wall be equipped at interval with
The air inlet and the gas outlet, the partition of the chamber connection are vertically provided in the chamber and make the air inlet
Mouthful and the gas outlet be located at the two sides of the partition, the upper end edge and two side ends edge of the partition respectively with the roof
It is fixed with the side wall, so that the partition and the cabinet limit the U-shaped exhaust gases passes.
Further embodiment according to the present invention is respectively equipped with vertical reinforcing rib on the two sides of the partition.
Further embodiment according to the present invention, two-by-two in the adjacent U-shaped reactor, the previous U-shaped reaction
The part side below the air inlet of U-shaped reactor described in the part side wall below the gas outlet of device and the latter
Wall is closely coupled.
Further embodiment according to the present invention, it is previous described U-shaped anti-two-by-two in the adjacent U-shaped reactor
It answers described in the air inlet of U-shaped reactor described in the gas outlet of device or less the part side wall and the latter or less part
Side wall is integrally formed wall.
Further embodiment according to the present invention, the bottom wall of each U-shaped reactor forms ash bucket, described to unload ash
The bottom of the ash bucket is arranged in valve.
Further embodiment according to the present invention, tilt angle >=65 ° of the ash bucket.
Further embodiment according to the present invention is provided with air on the ash bucket of each U-shaped reactor and helps
Flow device.
It according to one embodiment of present invention, further include multiple chain type blenders, multiple hinge blender correspondences are set
It sets in multiple U-shaped exhaust gases passes, and is located at the lower section that component is added in the desulfurizing agent.
Further embodiment according to the present invention, the hinge blender are located at the desulfurizing agent and are added 500 below component
At~1000mm, the mixing speed of the blender is 120~240r/min, comes into full contact with desulfurizing agent and flue gas.
According to some embodiments of the present invention, when the multistage dense phase semi-dry desulphurization reactor works, flue gas is in the U
Gas velocity in type exhaust gases passes is 3~5m/s, flue gas from the air inlet of first U-shaped exhaust gases passes to the last one
The residence time of the gas outlet of the U-shaped exhaust gases passes is 6~8s.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the multistage dense phase semi-dry desulphurization reactor of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the L-shaped arrangement of multistage dense phase semi-dry desulphurization reactor of the embodiment of the present invention.
Fig. 3 is the schematic diagram that the multistage dense phase semi-dry desulphurization reactor of the embodiment of the present invention is linearly arranged.
Fig. 4 is the structural schematic diagram of the partition in the multistage dense phase semi-dry desulphurization reactor of the embodiment of the present invention.
Appended drawing reference:
Multistage dense phase semi-dry desulphurization reactor 1000
1 exhaust pass 2 of inlet flue duct
U-shaped 31 air inlet of exhaust gases passes, 311 gas outlet 312 of U-shaped reactor 3
32 side wall of cabinet, 321 roof, 322 bottom wall (ash bucket) 323
33 reinforcing rib 331 of partition
4 unloading valve of component, 5 chain type blender, 6 air flow-aid device 7 is added in desulfurizing agent
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Multistage dense phase semi-dry desulphurization reactor 1000 according to an embodiment of the present invention is described below with reference to Fig. 1 to Fig. 4.
As shown in Figure 1, multistage dense phase semi-dry desulphurization reactor 1000 according to an embodiment of the present invention, including inlet flue duct
1, component 4 and multiple unloading valves 5 is added in exhaust pass 2, multiple U-shaped reactors 3, multiple desulfurizing agents, and multiple U-shaped reactors 3 are
Equipped with U-shaped exhaust gases passes 31, each U-shaped exhaust gases passes 31 are equipped with air inlet 311 and gas outlet 312, multiple U-shaped reactors 3
It is successively closely disposed adjacently between inlet flue duct 1 and exhaust pass 2, so that multiple U-shaped exhaust gases passes 31 are sequentially connected in series
Between inlet flue duct 1 and exhaust pass 2, wherein the gas outlet 312 of previous U-shaped exhaust gases passes 31 and the U-shaped flue gas of the latter are logical
The air inlet 311 in road 31 is connected to, and the air inlet 311 of first U-shaped exhaust gases passes 31 is connected to inlet flue duct 1, the last one is U-shaped
The gas outlet 312 of exhaust gases passes 31 is connected to exhaust pass 2；Multiple desulfurizing agents are added component 4 and are arranged in a one-to-one correspondence respectively more
It is close on a U-shaped reactor 3 and correspondingly at the air inlet 311 of multiple U-shaped exhaust gases passes 31 with to each U-shaped cigarette
Desulfurizing agent is added in gas channel 31；Multiple unloading valves 5 are arranged in a one-to-one correspondence on multiple U-shaped reactors 3 respectively and distinguish one by one
It sets the corresponding bottom lowermost position for being located at multiple U-shaped reactors 3.
Specifically, inlet flue duct 1 is for inputting cigarette to be desulfurization into multistage dense phase semi-dry desulphurization reactor 1000
Gas, exhaust pass 2 are used to the flue gas of the desulfurization in multistage dense phase semi-dry desulphurization reactor 1000 exporting discharge.
Multiple U-shaped reactors 3 are equipped with U-shaped exhaust gases passes 31, and each U-shaped exhaust gases passes 31 are equipped with 311 He of air inlet
Gas outlet 312, multiple U-shaped reactors 3 are successively closely disposed adjacently between inlet flue duct 1 and exhaust pass 2, so that multiple
U-shaped exhaust gases passes 31 are sequentially connected in series between inlet flue duct 1 and exhaust pass 2, wherein previous U-shaped exhaust gases passes 31 go out
Port 312 is connected to the air inlet 311 of the U-shaped exhaust gases passes 31 of the latter, the air inlet 311 of first U-shaped exhaust gases passes 31 with
Inlet flue duct 1 is connected to, and the gas outlet 312 of the last one U-shaped exhaust gases passes 31 is connected to exhaust pass 2.Passing through as a result, will be multiple
U-shaped exhaust gases passes 31 are connected, and flue gas folds reciprocal flowing in desulfurization reactor, so that Dry FGD is abundant, are realized more
Grade desulphurization reaction completed in same reactor, guarantee desulfurization flue gas meet related request, can satisfy SO2 >=
6000mg/m3The special emission limit of the Flue Gas of Nonferrous Smelting such as copper, lead, the zinc of high-sulfur feature (≤100mg/m3) requirement.Also,
Multiple U-shaped reactors 3 are successively closely disposed adjacently between inlet flue duct 1 and exhaust pass 2, and it is mutually half-dried to be conducive to multistage dense
1000 integral arrangement of method desulfurization reactor is compact-sized, and occupied area is small.
Optionally, the quantity of multiple U-shaped reactors 3 is 2 or 3.
Multiple desulfurizing agents are added component 4 and are arranged in a one-to-one correspondence on multiple U-shaped reactors 3 and face respectively correspondingly
It is bordering at the air inlet 311 of multiple U-shaped exhaust gases passes 31 so that desulfurizing agent such as pulverized limestone to be added into each U-shaped exhaust gases passes 31.
Desulfurizing agent is added component 4 and can be arranged in over the ground near the air inlet 311 of each U-shaped exhaust gases passes 31 with one as a result, is conducive to expand
Big effectively Dry FGD area, and it is relatively reasonable as the quantity that component 4 is added in the desulfurizing agent of stand-by equipment, it saves and accounts for
Ground space and equipment investment cost.
Such as star-shaped dust-discharging valve is arranged in a one-to-one correspondence on multiple U-shaped reactors 3 multiple unloading valves 5 respectively and difference one is a pair of
It sets the bottom lowermost position that multiple U-shaped reactors 3 should be located at.It is appreciated that flue gas and desulfurizing agent such as pulverized limestone are anti-when desulphurization reaction
The desulfurization product particle that should be generated such as calcium sulfide particle or other material grains such as desulfurizing agent, due to these substance specific gravity compared with
Weight, drops to the bottom of U-shaped exhaust gases passes 31, and the unloading valve 5 that the bottom lowermost position by the way that U-shaped reactor 3 is arranged in is set can be with
Facilitate discharge.And the quantity as the unloading valve of stand-by equipment 5 is relatively reasonable, save space occupied and equipment investment at
This.
Multistage dense phase semi-dry desulphurization reactor 1000 according to an embodiment of the present invention realizes and Multistage desulfuration reaction exists
It is carried out in same reactor, guarantees that the flue gas of desulfurization meets related request, can satisfy SO2 >=6000mg/m3High-sulfur feature
The special emission limit of the Flue Gas of Nonferrous Smelting (≤100mg/m such as copper, lead, zinc3) requirement.Meanwhile topology layout is compact, effectively
Reduce system footprint area, reduce the quantity that the stand-by equipments such as component 4 and unloading valve 5 are added in desulfurizing agent, reduces equipment throwing
Provide cost.
As shown in Figure 1 to Figure 3, according to one embodiment of present invention, multiple U-shaped reactors 3 are in line or L-type is arranged.
Thus, it is possible to can be arranged according to use space with flexible choice straight line arrangement or L-type, and 2 cloth of inlet flue duct 1 and exhaust pass
The orientation set is relatively flexible.
As shown in Figure 1, according to one embodiment of present invention, each U-shaped reactor 3 includes cabinet 32 and partition 33, case
Body 32 includes side wall 321, roof 322 and bottom wall 323, and chamber, side wall has been collectively formed in side wall 321, roof 322 and bottom wall 323
321 upper end is equipped with the air inlet 311 being connected to chamber and gas outlet 312 at interval, and partition 33 is vertically provided in chamber
And so that air inlet 311 and gas outlet 312 is located at the two sides of partition 33, the upper end edge and two side ends edge of partition 33 respectively with top
Wall 322 and side wall 321 are fixed, so that partition 33 and cabinet 32 limit U-shaped exhaust gases passes 31.
Specifically, cabinet 32 can be box-shaped cuboid, and the size of cabinet 32 can design according to field condition, every U
3 structure of type reactor is box cuboid, and 32 size of cabinet designs according to field condition.Optionally, each U-shaped reactor 3
Cabinet 32 uses ordinary carbon steel, cheap.Optionally, wall thickness >=5mm of cabinet 32, to guarantee each U-shaped reactor 3
The necessary intensity of cabinet 32, so that it is safe to guarantee that multistage dense phase semi-dry desulphurization reactor 1000 uses.
33 shape of partition can be selected according to the actual situation, for example, partition 33 can when cabinet 32 is box-shaped cuboid
Think rectangle, is weldingly fixed in U-shaped reactor 3.Optionally, partition 33 uses ordinary carbon steel, cheap, partition
33 wall thickness >=5mm, to guarantee the necessary intensity of partition 33 in each U-shaped reactor 3, to guarantee that multistage dense phase semidry method is de-
Reaction of Salmon-Saxl device 1000 uses safe.
As shown in figure 4, further embodiment according to the present invention, vertical reinforcement is respectively equipped on the two sides of partition 33
Muscle 331.By the way that vertical reinforcing rib 331 is arranged, it on the one hand can increase the intensity of partition 33, on the other hand, can prevent anti-
Product grain etc. is answered to be attached on reinforcing rib 331.
Specifically, reinforcing rib 331 can be respectively 50mm, 5mm specification band steel using width and thickness.331 plate of reinforcing rib
It can be welded on the two sides of partition 33 vertically every 500~1000mm, preferably to increase the strong of partition 33 to be multiple
Degree.
As shown in Figure 1, further embodiment according to the present invention, previous U-shaped anti-two-by-two in adjacent U-shaped reactor 3
Answer 312 or less the partial sidewall 321 of gas outlet of device 3 and 311 or less the partial sidewall 321 of air inlet of the U-shaped reactor 3 of the latter tight
It is close to be connected.Be conducive to the structure characteristics of compact layout of multistage dense phase semi-dry desulphurization reactor 1000 as a result, save space occupied.
Further embodiment according to the present invention, two-by-two in adjacent U-shaped reactor 3, previous U-shaped reactor 3
312 or less partial sidewall 321 of gas outlet and 311 or less the partial sidewall 321 of air inlet of the U-shaped reactor 3 of the latter are integrated into
Type wall, that is to say, that the gas outlet 312 of previous U-shaped reactor 3 be overlapped with the air inlet 311 of the U-shaped reactor 3 of the latter and
312 or less the partial sidewall 321 of gas outlet of previous U-shaped reactor 3 and the air inlet 311 of the U-shaped reactor 3 of the latter are with lower part
Point side wall 321 is integrally formed wall, the part as such, it will be understood that multiple U-shaped reactors 3 are integrally formed, and overall structure is simply tight
It gathers, space occupied is small.
The bottom wall 323 of further embodiment according to the present invention, each U-shaped reactor 3 forms ash bucket 323, and unloading valve 5 is set
It sets in the bottom of ash bucket 323, is conducive to the substances such as desulfurization product particle as a result, and concentrates by own wt to 323 bottom of ash bucket
It is mobile, facilitate the discharge of the substances such as desulfurization product particle.
Further embodiment according to the present invention, tilt angle >=65 ° of ash bucket 323.As a result, using big-inclination ash
Bucket 323 can prevent grey headwall to be desulfurized agent and desulfurization product bonding and destroy multistage dense phase semi-dry desulphurization reactor 1000
Normal usage function.
Further embodiment according to the present invention is provided with air flow-aid device on the ash bucket 323 of each U-shaped reactor 3
7, on the other hand grey headwall on the one hand can be prevented to be desulfurized agent and desulfurization product bonding as a result, enhances the flowing of desulfurizing agent
Property.
According to one embodiment of present invention, the desulfurizing agent being close at the air inlet 311 of first U-shaped exhaust gases passes 31
It is the desulfurizing agent delivery pipe that desulfurizing agent is conveyed using gas that component 4, which is added, and component 4 is added as desulfurizing agent humidification in remaining desulfurizing agent
Machine.Be conducive to facilitate in conveying desulfurizing agent to U-shaped inlet channel as a result,.
It according to one embodiment of present invention, further include multiple chain type blenders 6, multiple hinge blenders are correspondingly arranged at
In multiple U-shaped exhaust gases passes 31, and it is located at the lower section that component 4 is added in desulfurizing agent.On the one hand, so that flue gas sufficiently connects with desulfurizing agent
Touching mixing is conducive to improve flue gas desulphuization rate, can satisfy SO2 >=6000mg/m3The coloured smelting such as copper, lead, the zinc of high-sulfur feature
Refine the special emission limit of flue gas (≤100mg/m3) requirement, on the other hand, can be bonded in whipping process to avoid particle
On chain type blender 6.In addition, the corresponding a set of chain type blender 6 of each U-shaped reactor 3, avoids simple series connection desulfurization reactor
Stand-by equipments and the investments such as increased defeated ash, stirring.
Further embodiment according to the present invention, hinge blender are located at desulfurizing agent and 4 500~1000mm of lower section of component are added
The mixing speed at place, blender is 120~240r/min, and desulfurizing agent and flue gas is made to come into full contact with mixing, is conducive to improve flue gas
Desulfurization degree is conducive to can satisfy SO2 >=6000mg/m3The Flue Gas of Nonferrous Smelting such as copper, lead, the zinc of high-sulfur feature especially discharge limit
It is worth (≤100mg/m3) requirement.The corresponding a set of chain type blender 6 of each U-shaped reactor 3 avoids simple series connection desulphurization reaction
Stand-by equipments and the investments such as the increased defeated ash of device, stirring.
According to some embodiments of the present invention, when multistage dense phase semi-dry desulphurization reactor 100 works, flue gas is in U-shaped cigarette
Gas velocity in gas channel 31 is 3~5m/s, and flue gas is from the air inlet 311 of first U-shaped exhaust gases passes 31 to the last one U-shaped cigarette
The residence time of the gas outlet 312 in gas channel 31 is 6~8s.Be conducive to improve flue gas desulphuization rate as a result, be conducive to can satisfy
SO2≥6000mg/m3The special emission limit of the Flue Gas of Nonferrous Smelting such as copper, lead, the zinc of high-sulfur feature (≤100mg/m3) requirement.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (12)
1. a kind of multistage dense phase semi-dry desulphurization reactor characterized by comprising
Inlet flue duct and exhaust pass；
Multiple U-shaped reactors, multiple U-shaped reactors are equipped with U-shaped exhaust gases passes, and each U-shaped exhaust gases passes are all provided with
There are air inlet and air outlet, multiple U-shaped reactors are successively closely disposed adjacently in the inlet flue duct and the outlet
Between flue, so that multiple U-shaped exhaust gases passes are sequentially connected in series between the inlet flue duct and the exhaust pass,
In, the gas outlet of the previous U-shaped exhaust gases passes is connected to the air inlet of U-shaped exhaust gases passes described in the latter,
The air inlet of first U-shaped exhaust gases passes is connected to the inlet flue duct, the last one U-shaped exhaust gases passes
The gas outlet is connected to the exhaust pass；
Component is added in multiple desulfurizing agents, and multiple desulfurizing agents are added component and are arranged in a one-to-one correspondence respectively multiple described U-shaped anti-
It answers at the air inlet for being close in multiple U-shaped exhaust gases passes on device and correspondingly with to each U-shaped cigarette
Desulfurizing agent is added in gas channel；
Multiple unloading valves, multiple unloading valves are arranged in a one-to-one correspondence on multiple U-shaped reactors respectively and distinguish one by one
It sets the corresponding bottom lowermost position for being located at multiple U-shaped reactors.
2. multistage dense phase semi-dry desulphurization reactor according to claim 1, which is characterized in that multiple U-shaped reactions
Device is in line or L-type arrangement.
3. multistage dense phase semi-dry desulphurization reactor according to claim 1, which is characterized in that each U-shaped reaction
Device includes cabinet and partition, and the cabinet includes side wall, roof and bottom wall, and case has been collectively formed in the side wall, roof and bottom wall
Room, the upper end of the side wall are equipped with the air inlet being connected to the chamber and the gas outlet, the partition at interval
Be vertically provided in the chamber and the air inlet and the gas outlet made to be located at the two sides of the partition, the partition it is upper
End edge portion and two side ends edge are fixed with the roof and the side wall respectively, so that the partition and the cabinet limit institute
State U-shaped exhaust gases passes.
4. multistage dense phase semi-dry desulphurization reactor according to claim 3, which is characterized in that the two sides of the partition
On be respectively equipped with vertical reinforcing rib.
5. multistage dense phase semi-dry desulphurization reactor according to claim 3, which is characterized in that the adjacent U two-by-two
In type reactor, the part side wall is reacted with U-shaped described in the latter below the gas outlet of the previous U-shaped reactor
The part side wall below the air inlet of device is closely coupled.
6. multistage dense phase semi-dry desulphurization reactor according to claim 5, which is characterized in that the adjacent U two-by-two
In type reactor, the part side wall is reacted with U-shaped described in the latter below the gas outlet of the previous U-shaped reactor
The part side wall below the air inlet of device is integrally formed wall.
7. multistage dense phase semi-dry desulphurization reactor according to claim 3, which is characterized in that each U-shaped reaction
The bottom wall of device forms ash bucket, and the bottom of the ash bucket is arranged in the unloading valve.
8. multistage dense phase semi-dry desulphurization reactor according to claim 7, which is characterized in that the inclination angle of the ash bucket
>=65 ° of degree.
9. multistage dense phase semi-dry desulphurization reactor according to claim 7, which is characterized in that each U-shaped reaction
Air flow-aid device is provided on the ash bucket of device.
10. multistage dense phase semi-dry desulphurization reactor according to claim 1, which is characterized in that further include multiple chain types
Blender, multiple hinge blenders are correspondingly arranged in multiple U-shaped exhaust gases passes, and are located at the desulfurizing agent and component is added
Lower section.
11. multistage dense phase semi-dry desulphurization reactor according to claim 10, which is characterized in that the hinge blender
It being added below component at 500~1000mm positioned at the desulfurizing agent, the mixing speed of the blender is 120~240r/min,
Come into full contact with desulfurizing agent and flue gas.
12. multistage dense phase semi-dry desulphurization reactor described in any one of -12 according to claim 1, which is characterized in that institute
When stating the work of multistage dense phase semi-dry desulphurization reactor, gas velocity of the flue gas in the U-shaped exhaust gases passes is 3~5m/s, flue gas
Stop from the air inlet of first U-shaped exhaust gases passes to the gas outlet of U-shaped exhaust gases passes described in the last one
Staying the time is 6~8s.
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| PCT/CN2020/085246 WO2020211829A1 (en) | 2019-04-17 | 2020-04-17 | Multi-stage dense phase semi-dry desulphurisation reactor |
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| WO2020211829A1 (en) * | 2019-04-17 | 2020-10-22 | 中国恩菲工程技术有限公司 | Multi-stage dense phase semi-dry desulphurisation reactor |
| CN113499682A (en) * | 2021-08-21 | 2021-10-15 | 杭州航民江东热电有限公司 | Desulfurizing cylinder |
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